I have two models, let's call them A and B. A and B have their own properties and are related between them in a many to many relationship.
Model B has a very large amount of instances (in the rage of ...

I need to insert a 5K records every minute over an "unreliable" Internet connection to a cloud-based database (from different 10 systems all running simultaneously). The Internet connection is 10 MB ...

I am currently working on a project, where we use web mining (web crawlers) to build up a company database. At the moment we employ PostgreSQL as our main database, however, I feel it will cause a lot ...

Is it possible to transfer data from non-relational databases to relational database systems? I have data in an access database and I want to export it to a relation oracle database. If possible, how ...

What sort of pointers, facets, characteristics or structures should one analyse to determine that a given colletion of objects fits bets in a relational store or a Non-relational one? and further, how ...

I am trying to design a database schema and I have a question im my mind. In my database I have three table (Table(A|B|C)) and TableC refers TableB, Table B refers Table A and Table C refers Table B ...

In the conversion of an Entity Relationship Model to a Relational Data Model:
When mapping a 1:N Binary Relationship, should we include (as a foreign key) the composite key (partial key + foreign key ...

I'm going to start a big 3d modelization project, and i need to choose a system to store my data. The 3d-model in its raw format, before my engine process it, is made of billions of colored triangles.
...

Absolute novice programmer here. Over the last 4ish months I've been learning to code, starting with C#. I've just discovered lambdas, which lead me to Linq. Linq stuff sounds like a lot of fun, and ...

Currently moving our tables over to an append only model to increase write performance by avoiding UPDATE and DELETE, with a memcached front end for SELECT's.
All rows are timestamped with the latest ...

When composing a view - should I stick with the base tables or can I feel confident that including a view within a view will not hurt performance. I want to include the view because it would allow me ...

The QA department that tests my apps at work uses an Oracle database that they all share. Things get really hairy w/ their cases getting changed. bug reported filed + I spend time just to find out the ...

I'm making a system with some features of a social network. And I want to know what your thoughts on the persistence technologies that best apply to certain features.
Let's take three basic features ...

I have to connect to a RDBMS (locally and remotely) via iOS. I have seen the solution ( http://odbcrouter.com/ipad), but for that we have to buy a server side program to run but its very expensive and ...

What database can you recomend for such case:
Very lot of inserts and updates
Sophisticated queries (SQL or something like it)
Lot of data, but small amount of frequently accessed (can be in memory)
...

According to my professor in Intro. to Database Theory, there are NO examples in exisitance to show when this occasion would arise which seems a little bizarre considering its a specific part of the ...

I'm trying to "open" (?) a 20gb database with a .sql extension and can't find any documentation for beginners that doesn't already assume database access. I think as a first step I need some database ...